Unfortunately Courts will not reverse a bad plea deal merely because your friend feels shorted by the system. They will reverse an illegal sentence, however. If you feel that the sentence was illegal I would suggest contacting an attorney. While finding a pro bono attorney to address a sentencing issue in Federal Court will not be an easy task I would second the suggestions of my colleagues.
Without more facts this is a difficult question to address - your bond can be returned upon a final disposition of your case. As for "another bond" should the state seek to file additional charges you could be required to post an additional bond. Seek the assistance of a criminal defense attorney in your case.
Hire a competent attorney you can trust ASAP. While this is a relatively minor charge and the police have seemingly made an effort to explain it to you, only an attorney can truly aid your son in this situation.
Unless you had insurance on the bike your ability to recover may be limited. An alternative means to recoup here may be to hire an attorney to send the towing co. a civil theft demand letter. This may motivate the towing co. to recompense your loss.
You will need to contact an immigration/criminal attorney in order to ascertain the effects of a felony on his status in the US. Pleading guilty to and/or being adjudicated guilty of a felony could potentially subject him to deportation.
While this does not sound like an "aggravated felony" or a "crime of moral turpitude" that would subject your boyfriend to deportation (if convicted) it is still something that should be addressed by competent counsel.
While I am not licensed in GA and do not know the legal limit, I presume you were under it.
As such, find a local (Columbus, GA) attorney and fight it. Often times the police have the discretion to arrest you on a DUI even in the instance that you were under the legal limit in the instance you appeared to be intoxicated. This however is a very defensible issue and many attorneys would love to take this case. Look for one who believes in your cause and go from there.
I stand to agree with those before me that it is possible but difficult. The main thing to consider in your question, however, is that - based on the facts I see - it appears you are more interested in vacating the plea because you think it was a "bad deal." A court unfortunately will not likely vacate a plea agreement because one party later decides that they do not like the deal they got.
It appears as though your question is two-fold:
(1) What can I do about my DUI and
(2) What can I do about my dogs?
In answer to your DUI inquiry, seeing as how your BAC was marginal, you could likely have the charges reduced to a lesser offense should you contact local counsel (pending you do not have prior like arrests). Contact an Amesbury attorney in order to address this.
In answer to your inquiry concerning the dogs, you are better served hiring a local attorney than seeking...
While you may only have one item "expunged" in your lifetime and have had PTD previous I feel that the item overlooked here by my colleagues is your purported innocence.
A not guilty will look just as good on your record so long as you in fact are just that. If you honestly believe/know that you are innocent, a good attorney can likely help you with PTD, a great attorney will advocate for your innocence. While there are a great many risks in trial, advocating for the innocent is something...
Like those before me have asserted, you need to address the issue of probation prior to leaving the State. You will likely be able to get a P.O. in TX for the DUI/DWI charges.
In the instance you chose not to you risk potentially being extradited (while this will not likely happen - you run a risk - I do not know and cannot speak to the colorado or texas judiciary) and/or you may lose your job if and when they find out.