I'm in the Southeast, Juneau-Douglas area and I've noticed only a small amount of encryption by the AST and none by DOT-PF.
The bulk of the AST communications are in the clear, but are confined to very brief, terse communications regarding driver license IDs, names, birth dates, etc.
About one out of every ten broadcasts are encrypted, which makes me wonder when I'm reading the western and northern bulk of the state seems to be going mostly or all encrypted.
Possibly Juneau, being the capital and having a liberal majority, might make for a cautious switch to encryption?