Every person representing a client in matters before DOT in all contacts with DOT employees, should:

1. (a) Strictly observe the standards of professional conduct;
2. (b) Refrain from statements or other actions designed to mislead DOT or to cause unwarranted delay;
3. (c) Avoid offensive or intemperate behavior;
4. (d) Advise all clients to avoid improprieties and to obey the law as the attorney believes it to be; and
5. (e) Terminate the professional relationship with any client who persists in improprieties in proceedings before DOT.