The short answer is: yes, you can be "charged" with those offenses. What they need is probable cause. That will get them an arrest warrant. With that, they'll come and pick you up. It doesn't matter if you were previously arrested for it. You need to hire an attorney immediately, to be honest. Don't call them and don't talk to them. Have all communications go through your attorney. If the cop was in plainclothes at the store, and all he could produce was a business card, then there is certainly an available defense to both charges.
What you got in the mail is very likely a summons. If you fail to appear on the date that's included, they will issue a warrant for your arrest. But, just because you're being charged with those offenses does not mean you cannot beat them in court.
Answered on Jan 10th, 2014 at 7:16 PM