Rule 21 Exoneration
EXONERATION
When a boat is sailing within the room or mark-room to which she is
entitled under a rule of Section C, she shall be exonerated if, in an
incident with a boat required to give her that room or mark-room,
(a) she breaks a rule of Section A, rule 15 or rule 16, or
(b) she is compelled to break rule 31.
as you can see there is no provision for an exoneration from rule 22.2. If you foul another boat while making your turns then you are out of the race. Harsh but true.
Exoneration has nothing to do with taking a penalty. Exoneration is a "free pass" - you don't have to do anything if you break a rule (you are "exonerated").
Penalties for breaking a rule fall under rule 44:
44 PENALTIES AT THE TIME OF AN INCIDENT
44.1 Taking a Penalty
A boat may take a Two-Turns Penalty when she may have broken one or more rules of Part 2 in an incident while racing. She may take a One-Turn Penalty when she may have broken rule 31.
Rule 22.2 is in Part 2, therefore you may take a penalty if you break it.
