You can be arrested without field sobriety tests or a PAS device. However, if you fail to complete a breath or blood test after arrest, you may also be charged with VC 23577 which requires mandatory jail time. Call John Pettis at San Diego Defenders 619.233.6900. He is one of the foremost DUI attorneys in Southern California.
It's legal for them to arrest you without field sobriety tests or a breathalyzer if there was probable cause to believe you were impaired. They don't have to give you those tests, but it will be a lot harder for them to prove their case without them. Good luck to you.
There are some serious consequences for a 3rd time DUI. I would strongly suggest you speak with an attorney in your area about your case.
It may be harder for the DA to prove that you were impaired if you didn't do the test but doesn't mean that they won't try to find ways to prove impairment through just your blood alcohol level if you gave a blood sample.
Best of luck,