Why don't you save yourself some time and call and make an appointment? It always amazes me how people think that cold WALKING is more effective. Like they are going to somehow see you and think "oh, I need to talk to this guy and I need his service." No, they are just going to do the exact same thing they would on the phone...tell you to leave your information, or, they'll talk to you, but they aren't qualified until you spend time qualifying them...waste of time.
On one attempt at a walk in (where you risk a gatekeeper saying no, where you risk the DM not being available or in, where you risk that they will now KNOW who you are and block your calls and walk-ins even more adamantly), you are wasting valuable time you could be spending either setting your own appointments via phone, or going on ACTUAL appointments where people are qualified and know you are coming.
Would you your money like that? No? Then why would you waste your time like that?